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<p>[QUOTE=&quot;Hanadarko, post: 3008989, member: 33817&quot;]I kinda just went through this in November with my 2007 Fontaine Renegade.</p><p>I might have a post here somewhere about that.</p><p><br /></p><p>I used Hendrickson parts directly purchased.</p><p>They sell an HCV with a built-in-dump (for all 4 air springs) and then I also tied in the dump valve for</p><p>the rear air springs as indicated in the drawings earlier in this thread</p><p>The HCV has 2 outputs so I didn&#039;t need to &quot;T&quot; off the line before the rear spring dump valve.</p><p><br /></p><p>The HCV with autodump was under $100 and the dump valve solenoid was under $75.</p><p>(The Fontaine came with a Peter Paul or Peter Pan something valve that shorted and was very spendy to replace)</p><p><br /></p><p>I did have to run a new air line (split off from AHEAD of the reservoir) and buy DOT fittings but it works well.</p><p><br /></p><p>-I hit the switch and it will dump the rear air springs in less than 10 seconds.</p><p>-I engage the trailer brakes and all 4 air springs drop fully in under 12 seconds.</p><p>(Nice for loading/unloading heavy coils)</p><p><br /></p><p><img src="styles/default/xenforo/smilies-vb/roundies/biggrin_25525.gif" class="mceSmilie" alt=":biggrin_25525:" unselectable="on" />[/QUOTE]</p><p><br /></p>

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